Data Interpretation - Pie Charts - Discussion
Discussion Forum : Pie Charts - Pie Chart 1 (Q.No. 3)
Directions to Solve
The following pie-chart shows the percentage distribution of the expenditure incurred in publishing a book. Study the pie-chart and the answer the questions based on it.
Various Expenditures (in percentage) Incurred in Publishing a Book
3.
The price of the book is marked 20% above the C.P. If the marked price of the book is Rs. 180, then what is the cost of the paper used in a single copy of the book?
Answer: Option
Explanation:
Clearly, marked price of the book = 120% of C.P.
Also, cost of paper = 25% of C.P
Let the cost of paper for a single book be Rs. n.
Then, 120 : 25 = 180 : n  n = Rs. |
 |
25 x 180 |  |
= Rs. 37.50 . |
| 120 |
Discussion:
68 comments Page 7 of 7.
Sudheer said:
1 decade ago
Let the cost price of the book is 100, the given data clearly says that the selling/marked price is Rs.20 more than the Cost price, so the total cost of the book is 100+20 = 120.
Shreya said:
1 decade ago
As mention 20% above means 20% extra therefore total % is counted as 100 and 20% extra means 100+20 =120%.
Let the cost price be x.
And as mentioned in the question 20% above CP therefore.
x + 20% x = 180.
As 150 is the marked price and we are finding cost price therefore we are writing equal to 180.
Hence we get x = 150.
Now this is the CP = 150.
Paper cost 25% of CP as given in the question itself.
Total cost was 150.
Paper cost = 25/100 = 0.25*150 = 37.5.
Let the cost price be x.
And as mentioned in the question 20% above CP therefore.
x + 20% x = 180.
As 150 is the marked price and we are finding cost price therefore we are writing equal to 180.
Hence we get x = 150.
Now this is the CP = 150.
Paper cost 25% of CP as given in the question itself.
Total cost was 150.
Paper cost = 25/100 = 0.25*150 = 37.5.
Kiran kumar C V said:
1 decade ago
100/120*180 = 150.
150*25/100 = 37.5.
150*25/100 = 37.5.
LALIT said:
1 decade ago
But how 25% received?
Stephen bisto said:
1 decade ago
Please answer me S.P is it principle or constant that is 120 and C.P is 180 please help me about this number.
Aditya Ganjoo said:
1 decade ago
If I deduct 20% from the marked price, I get the CP. That is 20% of 180 = 144.
Now, 25% of CP is the paper cost. That is 144/4 = 36. Tell me how is that wrong?
Now, 25% of CP is the paper cost. That is 144/4 = 36. Tell me how is that wrong?
Keyur said:
10 years ago
I also face the same problem but after reading carefully I understood that.
1) Marked 20% above the C.P.
2) Marked price (SP) of the book is Rs. 180.
Now SP = 120% of C.P. That not 20% of 180 but 120% of C.P = 180.
25% of C.P = X.
So by taking ratio 37.5.
1) Marked 20% above the C.P.
2) Marked price (SP) of the book is Rs. 180.
Now SP = 120% of C.P. That not 20% of 180 but 120% of C.P = 180.
25% of C.P = X.
So by taking ratio 37.5.
Shadab Akhtar said:
9 years ago
Formula,
S.P = {(100 + gain%)* CP}/100.
C.P = (100 * SP)/100 + gain%.
Given,
S.P = 180.
Gain% = 20.
Therefore C.P = (100 * 180)/100 + 20.
=> 18000/120.
=> 150.
25% of C.P = (25 * 150)/100.
=> 37.5.
S.P = {(100 + gain%)* CP}/100.
C.P = (100 * SP)/100 + gain%.
Given,
S.P = 180.
Gain% = 20.
Therefore C.P = (100 * 180)/100 + 20.
=> 18000/120.
=> 150.
25% of C.P = (25 * 150)/100.
=> 37.5.
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